CN211300271U - Pressurization hollow nail structure - Google Patents
Pressurization hollow nail structure Download PDFInfo
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- CN211300271U CN211300271U CN201921565462.2U CN201921565462U CN211300271U CN 211300271 U CN211300271 U CN 211300271U CN 201921565462 U CN201921565462 U CN 201921565462U CN 211300271 U CN211300271 U CN 211300271U
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- spring
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Abstract
The utility model discloses a pressurization hollow nail structure, including first nail pole, first screw thread has been seted up to the left side outer wall of first nail pole, the inner chamber of first nail pole is pegged graft and is had the second nail pole, the outer wall of second nail pole is seted up flutedly, the screw thread head is installed on the right side of second nail pole, the second screw thread has been seted up to the outer wall of screw thread head, the screwhead is installed to the left end of first nail pole. This pressurization hollow nail structure, through first nail pole, first screw thread, the fixture block, first spring, through-hole isotructure realization device plugs up the left end of first nail pole, thereby effectively prevent that new long skeleton from growing into the centre bore and leading to demolising the difficulty, prevent effectively that the bone screw from splitting when demolising, realize the location between first nail pole and the second nail pole through structures such as montant, second spring, the fixed block, the pull rod, the fixture block, simple structure, beneficial effect is obvious, therefore, the clothes hanger is strong in practicability.
Description
Technical Field
The utility model relates to a hollow nail technical field specifically is a pressurization hollow nail structure.
Background
At present, the clinical fracture types are many, for example, sacroiliac joint fracture or sacral longitudinal fracture, after fracture, in medical clinic, when a doctor performs fracture treatment, fusion or osteotomy on a fracture patient, both ends of the fracture generally need to be fixed by screws, and when a guide pin is used, the screws generally need to be made into a hollow structure, the existing hollow position is generally only provided with threads outside one end of the hollow screw, namely a screwing-in end, so that the adjustment of the pressurizing force cannot be realized according to different requirements of the pressurizing force at the fracture line, and therefore, in the screwing-in process of the hollow screw, the condition of the excessive pressurizing force may occur, so that the nerve of the patient is pressed, and the patient cannot walk or the compressed part loses consciousness.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pressurization hollow nail structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a pressurized hollow nail structure comprises a first nail rod, wherein first threads are formed in the outer wall of the left side of the first nail rod, a second nail rod is inserted into the inner cavity of the first nail rod, a groove is formed in the outer wall of the second nail rod, a thread head is installed on the right side of the second nail rod, second threads are formed in the outer wall of the thread head, a screw head is installed at the left end of the first nail rod, a stop block is installed in the inner cavity of the screw head, through holes are formed in the upper end and the lower end of the first nail rod, a plug device is installed on the left side of the inner cavity of the first nail rod, and clamping structures are arranged at the upper end and the lower end of the right side of the outer wall of the first nail rod;
the plug device comprises a sliding chute, a plug, a sliding block, a clamping rod and a first spring;
a sliding groove is tightly attached to the left side of the inner cavity of the first nail rod, a plug is installed on the left side of the sliding groove, sliding blocks are embedded in the upper end and the lower end of the inner cavity of the sliding groove, a first spring is installed on the inner side of each sliding block, and a clamping rod is installed on the outer side of each sliding block;
the clamping structure comprises a vertical rod, a second spring, a fixing block, a pull rod and a clamping block;
the fixed block is all installed at both ends about the outer wall right side of first nail pole, the montant has all been pegged graft to both sides about the inner chamber of fixed block, the second spring has been cup jointed to the outer wall of montant, the pull rod is installed in the outside of montant, the fixture block is installed to the inboard of montant, the outside of second spring welds with the inner wall of fixed block mutually, the inboard of fixture block is closely laminated with the second nail pole, the fixture block passes through the recess and presss from both sides the second nail pole tightly.
Preferably, the first thread has a greater thread density than the second thread.
Preferably, the groove is formed in the outer walls of the upper end and the lower end of the second nail rod from left to right with a gap.
Preferably, the stopper is a circular ring stopper.
Preferably, the through hole is a cylindrical through hole.
Preferably, the number of the first springs is three, and the first springs are installed inside the slider with a gap.
Preferably, the fixture block is a triangular block.
Compared with the prior art, the beneficial effects of the utility model are that: this pressurization hollow nail structure, through first nail pole, first screw thread, the second threaded rod, a groove, the thread head, the second screw thread, the screwhead, the spout, the end cap, the dog, the slider, the fixture block, first spring, structure realization devices such as through-hole plug up the left end of first nail pole, thereby effectively prevent that the bone of new growth from growing into the centre bore and leading to demolising the difficulty, effectively prevent bone screw fracture when demolising, through the montant, the second spring, the fixed block, the pull rod, the location between first nail pole and the second nail pole is realized to structures such as fixture block, moreover, the steam generator is simple in structure, and has obvious beneficial effects and strong practicability.
Drawings
FIG. 1 is a front sectional view of a first nail rod structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is an enlarged view of the point A of the present invention;
fig. 4 is an enlarged view of the position B of the present invention.
In the figure: 1. the screw comprises a first screw rod, 2, a first thread, 3, a second screw rod, 4, a groove, 5, a screw head, 6, a second thread, 7, a screw head, 8, a sliding groove, 9, a plug, 10, a stop block, 11, a sliding block, 12, a clamping rod, 13, a first spring, 14, a through hole, 15, a vertical rod, 16, a second spring, 17, a fixed block, 18, a pull rod, 19 and a clamping block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a pressurized hollow nail structure comprises a first nail rod 1, a first thread 2 is arranged on the outer wall of the left side of the first nail rod 1, a second nail rod 3 is inserted into the inner cavity of the first nail rod 1, the second nail rod 3 is inserted into the first nail rod 1, the first nail rod 1 is ejected outwards through the second nail rod 3, a fracture line is fully pressurized, a groove 4 is formed in the outer wall of the second nail rod 3, a thread head 5 is arranged on the right side of the second nail rod 3, a second thread 6 is arranged on the outer wall of the thread head 5, a screw head 7 is arranged at the left end of the first nail rod 1, a stop block 10 is arranged in the inner cavity of the screw head 7, through holes 14 are formed in the upper end and the lower end of the first nail rod 1, the through holes 14 are cylindrical, the cylindrical through holes facilitate the disassembly of a sliding chute 8, a plug device is arranged on the left side of the inner cavity of the first nail rod 1, and clamping structures are arranged at the upper end and the;
the plug device comprises a chute 8, a plug 9, a slide block 11, a clamping rod 12 and a first spring 13;
the left side of the inner cavity of the first nail rod 1 is tightly attached with a sliding chute 8, the left side of the sliding chute 8 is provided with a plug 9, the upper end and the lower end of the inner cavity of the sliding chute 8 are respectively embedded with a sliding block 11, the inner side of the sliding block 11 is provided with a first spring 13, the first nail rod 1 compresses the first spring 13 through the sliding block 11, the insertion into the sliding chute 8 is stopped after a stop block 10 enters a through hole 11, and the outer side of the sliding block 11 is provided with a clamping rod 12;
the clamping structure comprises a vertical rod 15, a second spring 16, a fixed block 17, a pull rod 18 and a clamping block 19;
Preferably, further, the first thread 2 has a greater thread density than the second thread 6, the first thread 2 facilitating screwing of the device into bone.
Preferably, the groove 4 is formed in the outer walls of the upper end and the lower end of the second nail rod 3 from left to right with a gap, and the groove 4 is matched with the block 19 for use.
Preferably, the stopper 10 is a circular ring-shaped stopper, and the stopper 10 facilitates fixing the sliding groove 8.
Preferably, the through hole 14 is a cylindrical through hole, and the cylindrical through hole facilitates the detachment of the sliding chute 8.
Preferably, the number of the first springs 13 is three, the first springs 13 are mounted inside the slider 11 with a gap, and the elastic coefficient of the first springs 13 is 8N/CM.
Preferably, the latch 19 is a triangular block, and when the latch 19 is disengaged from the groove 4, the second nail shaft 3 is detached.
The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.
When the fracture is set, a kirschner wire is driven in through a guider, then a first nail rod 1 is sleeved on the kirschner wire and screwed into a fracture part to be tensioned and positioned, a sliding groove 8 is inserted into an inner cavity of the first nail rod 1, at the moment, the first nail rod 1 compresses a first spring 13 through a sliding block 11, the first nail rod 1 stops being inserted into the sliding groove 8 after a stop dog 10 enters a through hole 11, the first nail rod 1 is blocked by the implementation device, so that the difficulty in dismounting caused by the fact that a new long bone grows into the central hole is effectively prevented, fracture of a bone screw during dismounting is effectively prevented, when the fracture line needs to be pressed, a second nail rod 3 is inserted into the first nail rod 1, the first nail rod 1 is ejected outwards through the second nail rod 3, the fracture line is fully pressed, the adjustment of the pressing position of the fracture line can be realized through the matching of a clamping block 19 and a groove 4, when the device needs to be dismounted, the pull rod 18 is pulled outwards, the pull, the transverse vertical rod 15 drives the clamping block 19 to move outwards, when the clamping block 19 is separated from the groove 4, the second nail rod 3 is detached at the moment, and the novel nail rod structure is simple in design structure, obvious in beneficial effect and beneficial to popularization and use.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless expressly stated or limited otherwise, the terms "snap" or "coupling" or "mating" or "welding" or "mounting" or "providing" are to be construed broadly, e.g., as a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a pressurization hollow nail structure, includes first nail pole (1), its characterized in that: the outer wall of the left side of the first nail rod (1) is provided with first threads (2), the inner cavity of the first nail rod (1) is spliced with a second nail rod (3), the outer wall of the second nail rod (3) is provided with a groove (4), the right side of the second nail rod (3) is provided with a thread head (5), the outer wall of the thread head (5) is provided with second threads (6), the left end of the first nail rod (1) is provided with a screw head (7), the inner cavity of the screw head (7) is provided with a stop block (10), the upper end and the lower end of the first nail rod (1) are both provided with through holes (14), the left side of the inner cavity of the first nail rod (1) is provided with a plug device, and the upper end and the lower end of the right side of the outer wall of the first nail rod (1) are both provided with clamping;
the plug device comprises a sliding chute (8), a plug (9), a sliding block (11), a clamping rod (12) and a first spring (13);
a sliding chute (8) is tightly attached to the left side of an inner cavity of the first nail rod (1), a plug (9) is installed on the left side of the sliding chute (8), sliding blocks (11) are embedded in the upper end and the lower end of the inner cavity of the sliding chute (8), a first spring (13) is installed on the inner side of each sliding block (11), and a clamping rod (12) is installed on the outer side of each sliding block (11);
the clamping structure comprises a vertical rod (15), a second spring (16), a fixed block (17), a pull rod (18) and a fixed block (19);
fixed block (17) are all installed at both ends about the outer wall right side of first nail pole (1), both sides are all pegged graft about the inner chamber of fixed block (17) and have montant (15), second spring (16) have been cup jointed to the outer wall of montant (15), pull rod (18) are installed in the outside of montant (15), fixture block (19) are installed to the inboard of montant (15), the outside of second spring (16) welds with the inner wall of fixed block (17) mutually, the inboard of fixture block (19) is closely laminated and is had second nail pole (3), fixture block (19) are tightly pressed from both sides second nail pole (3) through recess (4).
2. A pressurized hollow nail structure according to claim 1, characterized in that: the first thread (2) has a thread density greater than the second thread (6).
3. A pressurized hollow nail structure according to claim 1, characterized in that: the groove (4) is arranged on the outer walls of the upper end and the lower end of the second nail rod (3) from left to gap.
4. A pressurized hollow nail structure according to claim 1, characterized in that: the stop block (10) is a circular ring-shaped stop block.
5. A pressurized hollow nail structure according to claim 1, characterized in that: the through hole (14) is a cylindrical through hole.
6. A pressurized hollow nail structure according to claim 1, characterized in that: the number of the first springs (13) is three, and the first springs are arranged on the inner side of the sliding block (11) in a clearance mode.
7. A pressurized hollow nail structure according to claim 1, characterized in that: the fixture block (19) is a triangular block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921565462.2U CN211300271U (en) | 2019-09-20 | 2019-09-20 | Pressurization hollow nail structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921565462.2U CN211300271U (en) | 2019-09-20 | 2019-09-20 | Pressurization hollow nail structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211300271U true CN211300271U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921565462.2U Expired - Fee Related CN211300271U (en) | 2019-09-20 | 2019-09-20 | Pressurization hollow nail structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211300271U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114681030A (en) * | 2022-03-02 | 2022-07-01 | 武汉嘉一三维技术应用有限公司 | Posterior cruciate ligament tibia insertion avulsion fracture fixing device and using method |
-
2019
- 2019-09-20 CN CN201921565462.2U patent/CN211300271U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114681030A (en) * | 2022-03-02 | 2022-07-01 | 武汉嘉一三维技术应用有限公司 | Posterior cruciate ligament tibia insertion avulsion fracture fixing device and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 Termination date: 20210920 |